Ram Narayan, Mir Madan, Rai Durlabh, Jagat Singh

Which one of the following is correctly matched?
(A) Ram Narayan — General of Siraj-ud-daula
(B) Mir Madan — Diwan of Mir Jafar
(C) Rai Durlabh — Governor of Bihar
(D) Jagat Singh — A famous banker of Bengal